Originally Posted by TomHuffman
This is strange. I haven't seen this problem, which begins at 60% on down. Above that it is fine. Do you have the latest build of CP?
If you want me to troubleshoot, then please copy/paste the data in the activity window into an e-mail and send it to ChromaPure support. One general comment: If your average dE is 1.2 before running auto-cal, I would uncheck grayscale and just run auto-cal on color. After auto-cal has finished, in your case I would also adjust the Gamma value in the signal generator toolbar to about 1.05 to raise your gamma across the board. BTW, setting the gamma in the JVC to 2.4 before calibration will help this as well.
Thanks Tom; I'll try some of your suggestions over the next few days. My Chromapure is the latest build as of perhaps 2 weeks ago.
There's still a few things I'm confused about:
1. You say to adjust the gamma value in the signal generator toolbar after autocal. I don't understand the purpose of this change. The calibration is done; what will changing the signal generator at that time accomplish?
2. In the big table at the end of my report, there are several lines where the saturation is off by 5,000% or more. I assume this was some kind of measurement error. But on those same lines, the dE is very small. Does that make any sense?
3. Does the Color Checker report require Excel? When I try to create a report it wants to open a CSV file and Windows pops up some dialog box asking me if I want to buy MS Office.
FYI, the first time I tried autocal last night, it died after about 10 minutes with an error popup. Something about indexStart out of range. I restarted it, and it completed fine.